(Sample Census 1966: England and Wales: Household Composition Tables. Stationery Office, £3 17s 6d).
Mr Lavely points out that China is unusual in having significantly higher infant mortality among girls than boys: 39 per 1,000 girls compared with 30 per 1,000 boys, according to a sample census in 1995.
The descriptive characteristics of the sample, census tracts, and all independent and dependent variables at the individual and census tract levels are detailed in Table 1.
With the help of INSEE (Institut National de la Statistique et des Etudes Economiques) of France, there was a sample census in rural Mauritania in 1964 to 1965.
Thus, the sample is self-selected, and our rates of smoke alarm maintenance may not be representative of the larger population in the sampled census tracts or in the City overall.
In some contexts, and for some populations, one could replicate the Mauritanian approach to their sample census in 1964 and 1977 - using the tribal chiefs and the lineage system.
A further sample census (sample of nomads but complete enumeration for the sedentary) was undertaken in 1976/1977 which used a similar approach based on the tribal structure to identify respondents, whilst retaining interviews at household level (République Islamique de Mauritanie nd_a, nd_b).
The survey employed a two-stage stratified cluster sampling approach where a representative sample of census tracts for each district was first drawn, and then households were randomly selected within those sampled census tracts at the baseline.
Observers in two-person teams visited sampled census tracts from September 2004 to August 2005 in Southern Louisiana and from October 2004 to November 2005 in Los Angeles County.
We further categorized the census tracts as low or high income by whether their median incomes were below or above the median income for the sampled census tracts in their region (i.e. Louisiana or Los Angeles).
